Directory Services


The ldap_extended_operation_s function enables you to pass extended LDAP operations to the server.

ULONG ldap_extended_operation_s(
  LDAP* ld,
  PCHAR Oid,
  struct berval* Data,
  PLDAPControl* ServerControls,
  PLDAPControl* ClientControls,
  PCHAR* ReturnedOid,
  struct berval** ReturnedData


[in] The session handle.
[in] A pointer to a null-terminated string that contains the dotted object identifier (OID) text string that names the request.
[in] The arbitrary data required by the operation. If NULL, no data is sent to the server.
[in] Optional. A list of LDAP server controls. Set this parameter to NULL if not used.
[in] Optional. A list of client controls. Set this parameter to NULL if not used.
[out] Optional. A pointer to a null-terminated string that contains the dotted OID text string of the server response message. This is normally the same OID as that which names the request passed to the server in the Oid parameter. Set to NULL if not used.
[out] Optional. The arbitrary data returned by the extended operation. If NULL, no data is returned by the server. Set this parameter to NULL if not used.

Return Values

If the function succeeds, LDAP_SUCCESS is returned.

If the function fails, an error code is returned. For more information, see Return Values.


The ldap_extended_operation_s function enables a client to send an extended request (free for all) to an LDAP 3 (or later) server. The functionality is open and the client request can be for any operation.

As a synchronous function, ldap_extended_operation_s returns any response data in the ReturnedOid and ReturnedData fields. When no longer required, free the ReturnedOID string and the ReturnedData buffer by calling ldap_memfree. Because ReturnedData is not a PCHAR data type, it must be explicitly cast when used as an argument of ldap_memfree, such as:

struct berval *pBV;
ldap_extended_operation_s(......., &pBV);
ldap_memfree( (PCHAR) pBV);

Multithreading: The ldap_extended_operation_s function is thread-safe.


Client: Included in Windows XP and Windows 2000 Professional.
Server: Included in Windows Server 2003 family and Windows 2000 Server.
Redistributable: Requires Active Directory Client Extension on Windows NT 4.0 SP6a and Windows Me/98/95.
Unicode: Implemented as Unicode and ANSI on all platforms.
Header: Declared in Winldap.h.
Library: Use Wldap32.lib.

See Also

Functions, ldap_memfree, ldap_extended_operation, Return Values